* {
    padding: 0;
    margin: 0;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background-color: #fff;
}

#container {
    width: 800px;
    min-height: 100%;
    box-sizing: border-box;
    padding: 20px 25px;
    background-color: #f6f6f6;
    overflow: auto;
}

.post {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid black;
}

.post p {
    margin-top: 15px;
}

.add-comment {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid black;
}

.add-comment h2 {
    margin-bottom: 10px;
}

.add-comment textarea {
    outline: none;
    width: 100%;
    max-width: 100%;
    min-width: 100%;
    min-height: 50px;
    box-sizing: border-box;
    padding: 10px;
}

.add-comment input {
    outline: none;
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
    margin-bottom: 10px;
}

.add-comment button {
    width: 100px;
    height: 25px;
    background-color: burlywood;
    color: white;
    outline: none;
    border: none;
    cursor: pointer;
}

.comments ul {
    list-style: none;
    margin-bottom: 15px;
}

.comments li {
    border-bottom: 1px dashed black;
    margin-bottom: 10px;
}

.comments li p {
    margin-bottom: 10px;
}

.comments li p:first-child {
    display: flex;
    justify-content: space-between;
}